2.4 GHz RF Propagation Measurements and Modeling in A Paddy Field for A Wireless Sensor Network

被引：0

作者：

Yamaoka, Yoshitaka ^{[1
]}

Hamasaki, Toshihiko ^{[1
]}

Kuramoto, Daisuke ^{[1
]}

机构：

[1] Hiroshima Inst Technol, Grad Sch Sci & Technol, Hiroshima, Japan

来源：

PROCEEDINGS OF THE 2019 9TH IEEE-APS TOPICAL CONFERENCE ON ANTENNAS AND PROPAGATION IN WIRELESS COMMUNICATIONS (IEEE APWC' 19) | 2019年

关键词：

wireless sensor network; low power; propagation; communication reliability; paddy field; modeling;

D O I：

10.1109/apwc.2019.8870383

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

This paper describes 2.4 GHz RF peer-to-peer propagation measurements and modeling in a Japonica paddy field during 5 stages of the growth season: transplantation, panicle initiation, hooting, flowering, and grain filling. From the perspective of practicality for the various setting conditions of a sensor unit, the antenna heights were placed 55, 105 and 155 cm from the ground in order to evaluate signal propagation through vegetation. Detailed measurement curves of RSSI (received signal strength indication) against distance indicate the presence of various vegetation types based on the moisture conditions of plant growth. The SRET (simplified radiative energy transfer)-based model fits well depending on leaf density for NLOS (non-line-of-sight) conditions. In the case of LOS (line-of-sight) conditions, a novel model named the "TRPF (two-ray paddy field) model" is proposed in order to express the influence of vegetation for a reflection wave.

引用

页码：34 / 35

页数：2

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